JP5869074B2 - Protocol for enabling mode 1 and mode 2 devices in a TV white space network - Google Patents

Description

Cross-reference to related applications

  This application is based on US provisional patent application serial number 61 / 409,215 (attorney docket number 103294P1) filed on November 2, 2010 and US provisional patent application serial number filed on November 5, 2010. Claims 61 / 410,631 (attorney docket number 103294P2), both of which are incorporated herein by reference.

Field

  Certain aspects of the present disclosure relate generally to wireless communications, and more particularly to operation in a television white space (TVWS) network.

background

  Wireless communication networks are widely adopted to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple access networks that can support multiple users by sharing available network resources. Examples of such multiple access networks are code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks and single carrier FDMA (SC). -FDMA) network.

  Different schemes have been developed to address the problem of increasing bandwidth requirements required for wireless communication systems. One scheme, known as “White-fi”, involves extended Wi-Fi technology with unused frequency spectrum (ie, TV white space) in the television (TV) band. An IEEE 802.11af task group was created to define a revision to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard to use TV White Space (TVWS). IEEE 802.11 refers to a set of wireless local area network (WLAN) air interface standards developed by the IEEE 802.11 committee for short-range communications (eg, tens to hundreds of meters). . However, by using TVWS with a frequency lower than 1 GHz, IEEE 802.11af may provide longer propagation distance in addition to the increased bandwidth provided by unused frequencies in the TV spectrum.

Overview

  Certain aspects of the present disclosure provide an apparatus for wireless communication. This apparatus typically includes a receiver and a processing system. The receiver is typically configured to receive a message with a field that indicates a current version of an unused frequency spectrum map (eg, a white space map), and the unused frequency spectrum map is wireless Indicates available channels for communication. The processing system generally determines whether the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, and based on the determination, for wireless communication Configured to use multiple channels.

  Certain aspects of the present disclosure provide a method for wireless communication. The method generally receives a message at a device having a field indicating a current version of an unused frequency spectrum map, where the unused frequency spectrum map indicates available channels for wireless communication. Determining whether the current version of the map of unused frequency spectrum is different from the previous version of the map of unused frequency spectrum and, based on the determination, determining the channel for wireless communication. Using.

  Certain aspects of the present disclosure provide an apparatus for wireless communication. The apparatus generally receives a message having a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map being a means for indicating available channels for wireless communication; A means for determining whether the current version of the map of unused frequency spectrum is different from the previous version of the map of unused frequency spectrum, and using a channel for wireless communication based on the determination Means.

  Certain aspects of the present disclosure provide a computer program product for wireless communication. A computer program product generally includes a computer readable medium that is used to receive a message at a device having a field indicating a current version of a map of an unused frequency spectrum. Executable instructions that indicate which channels in the frequency spectrum are available for wireless communication and whether the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map Instructions executable to determine whether or not and instructions executable to use a channel for wireless communication based on the determination.

  Certain aspects of the present disclosure provide a wireless node. A wireless node is generally configured to receive a message having a field indicating a current version of a map of unused frequency spectrum via at least one antenna and at least one antenna. The frequency spectrum map in use is the receiver that shows the channels available for wireless communication and whether the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map. And a processing system configured to use the channel for wireless communication based on the determination.

  Certain aspects of the present disclosure provide a first apparatus for wireless communication. The first apparatus is generally configured to determine a version of a map of the unused frequency spectrum, and the map of the unused frequency spectrum is a processing system that indicates available channels for wireless communication; A transmitter configured to transmit a message having a field indicating a version of the map of the unused frequency spectrum.

  Certain aspects of the present disclosure provide a method for wireless communication. The method generally determines an unused frequency spectrum map version at the first device, the unused frequency spectrum map indicating an available channel for wireless communication and an unused Sending a message with a field indicating a version of the map of the frequency spectrum.

  Certain aspects of the present disclosure provide a first apparatus for wireless communication. The first device generally determines a version of a map of the unused frequency spectrum, and the map of the unused frequency spectrum includes means for indicating available channels for wireless communication, and an unused frequency. Means for transmitting a message having a field indicating a version of the map of the spectrum.

  Certain aspects of the present disclosure provide a computer program product for wireless communication. A computer program product generally includes a computer readable medium that is executable to determine a version of a map of an unused frequency spectrum at the device, wherein the map of the unused frequency spectrum Includes instructions that indicate available channels for wireless communication and instructions that are executable to send a message having a field that indicates a version of a map of the unused frequency spectrum.

  Certain aspects of the present disclosure provide an access point. An access point is typically configured to determine at least one antenna and a version of an unused frequency spectrum map, where the unused frequency spectrum map is an available channel for wireless communication. And a transmitter configured to transmit, via the at least one antenna, a message having a field indicating a version of an unused frequency spectrum map.

  Certain aspects of the present disclosure provide an apparatus for wireless communication. The device typically accesses a database of available channels for the device's current location via an adjacent enabling device and wirelessly communicates via one or more of the available channels. And a processing system configured to enable one or more other devices.

  Certain aspects of the present disclosure provide a method for wireless communication. The method generally involves accessing a database of available channels at a device via an adjacent enabling device for the current location of the device and via one or more of the available channels. Enabling one or more other devices for wireless communication.

  Certain aspects of the present disclosure provide an apparatus for wireless communication. The device generally has access to a database of available channels for the device's current location via an adjacent enabling device, and wirelessly via one or more of the available channels. Means for enabling one or more other devices for communication.

  Certain aspects of the present disclosure provide a computer program product for wireless communication. A computer program product generally includes a computer-readable medium that accesses a database of channels available to the device's current location via an adjacent enabling device at the device. Including instructions executable to enable one or more other devices for wireless communication via one or more of the available channels.

  Certain aspects of the present disclosure provide an access point. The access point typically accesses a database of available channels for the current location of the access point via at least one antenna and an adjacent enabling device, and one of the available channels. Via one or more processing systems configured to enable one or more devices for wireless communication.

  Certain aspects of the present disclosure provide an apparatus for wireless communication. A processing system is generally configured to enable a non-enabled adjacent enableable device as a subordinate device and to access a database of available channels for the enabled adjacent device. And a transmitter configured to transmit an indication of available channels to neighboring devices.

  Certain aspects of the present disclosure provide a method for wireless communication. The method generally includes enabling, in a device, a non-enabled adjacent enableable device as a subordinate device, accessing a database of channels available to the enabled adjacent device, Sending an indication of the available channels to the device.

  Certain aspects of the present disclosure provide an apparatus for wireless communication. The apparatus generally comprises means for enabling a non-enabled adjacent enableable device as a slave device, means for accessing a database of channels available to the enabled adjacent device, and the adjacent device. Means for transmitting an indication of available channels.

  Certain aspects of the present disclosure provide a computer program product for wireless communication. A computer program product generally includes a computer readable medium that is executable with instructions executable to enable a non-enabled adjacent enableable device in the device as a slave device. Instructions executable to access a database of available channels for neighboring devices and instructions executable to send an indication of available channels to neighboring devices.

  Certain aspects of the present disclosure provide an access point. The access point generally enables at least one antenna and a non-enabled adjacent enableable device as a subordinate device and accesses a database of available channels for the enabled adjacent device. And a transmitter configured to transmit an indication of available channels to neighboring devices via at least one antenna.

In order that the above-discussed features of the present disclosure may be understood in detail, a more detailed description, briefly outlined above, is provided by reference to the embodiments, some of which are illustrated in the accompanying drawings. . The accompanying drawings, however, illustrate only certain exemplary aspects of the present disclosure and are therefore not to be considered as limiting its scope, but for purposes of explanation, other equally effective ones. It should be noted that aspects may be recognized.
FIG. 1 illustrates a diagram of a wireless communication network in accordance with certain aspects of the present disclosure. FIG. 2 illustrates a block diagram of an exemplary access point and user terminal in accordance with certain aspects of the present disclosure. FIG. 3 illustrates a block diagram of an exemplary wireless device in accordance with certain aspects of the present disclosure. FIG. 4 illustrates a table of device modes for a television white space (TVWS) as defined by the US Federal Communications Commission (FCC) in accordance with certain aspects of the present disclosure. FIG. 5 illustrates an exemplary operation for using a received message with a field indicating a current version of a white space map (WSM) from the perspective of a mode 1 device, in accordance with certain aspects of the present disclosure. Show. FIG. 5A illustrates exemplary components that perform the operations illustrated in FIG. FIG. 6 illustrates an exemplary operation for using a message with a field indicating the current version of WS from the perspective of a mode 2 device, in accordance with certain aspects of the present disclosure. FIG. 6A illustrates exemplary components that perform the operations illustrated in FIG. FIG. 7 illustrates an exemplary contact confirmation information element (CVIE) in accordance with certain aspects of the present disclosure. FIG. 8 illustrates an exemplary broadcast management frame including the CVIE of FIG. 7 in accordance with certain aspects of the present disclosure. FIG. 9 illustrates an exemplary registered location query protocol (RLQP) WSM request message format in accordance with certain aspects of the present disclosure. FIG. 10 illustrates an exemplary RLQP WSM response message format in accordance with certain aspects of the present disclosure. FIG. 11 illustrates an exemplary WSM query message format for a public action frame in accordance with certain aspects of the present disclosure. FIG. 12 illustrates an exemplary WSM response message format for a public action frame in accordance with certain aspects of the present disclosure. FIG. 13 illustrates an apparatus view through an adjacent portable or fixed enabling device (eg, a fixed or mode 2 device) in terms of an apparatus such as a mode 2 capable device, in accordance with certain aspects of the present disclosure. FIG. 4 illustrates an exemplary operation for accessing a database of available channels for a current location. FIG. 13A illustrates exemplary components that perform the operations illustrated in FIG. FIG. 14 is available for an adjacent portable enableable device (eg, a mode 2 capable device) in terms of an apparatus such as a fixed or mode 2 device in accordance with certain aspects of the present disclosure. FIG. 6 illustrates an exemplary operation for accessing a database of channels. FIG. 14A illustrates exemplary components that perform the operations illustrated in FIG. FIG. 15 illustrates a database access diagram for a mode 2 capable AP via a mode 2 access point (AP) in an exemplary wireless communication network, in accordance with certain aspects of the present disclosure. FIG. 16 illustrates an over-the-air (OTA) database access procedure in accordance with certain aspects of the present disclosure. FIG. 17 illustrates an extension to the RLQP information identifier (ID) definition for OTA database access in accordance with certain aspects of the present disclosure. FIG. 18 illustrates an exemplary RLQP database access query message format in accordance with certain aspects of the present disclosure. FIG. 19 illustrates an exemplary RLQP database access response message format in accordance with certain aspects of the present disclosure. FIG. 20 illustrates an exemplary WSM message format for a public action frame in accordance with certain aspects of the present disclosure. FIG. 21 illustrates an exemplary broadcast management frame that includes the WSM message of FIG. 20 in accordance with certain aspects of the present disclosure.

Detailed description

  In the following, various aspects of the present disclosure are described more fully with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, the scope of the present disclosure may be any of the disclosures disclosed herein, whether implemented separately or in combination with any other aspect of the invention. One skilled in the art should appreciate that it is intended to cover the embodiments. For example, any number of aspects described herein can be used to implement an apparatus or implement a method. Furthermore, the scope of the disclosure is intended to cover apparatus or methods that may be implemented using other structures or functions or structures and functions in addition to or in addition to the various aspects of the disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.

  The term “exemplary” is used herein to mean “serving as an example, instance, or illustration”. Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or effective as compared to other aspects.

  Although particular aspects are described herein, many variations and permutations of these aspects are included within the scope of this disclosure. Although some benefits and advantages of the preferred aspects are mentioned, the scope of the disclosure is not intended to be limited to particular benefits, uses, or objectives. Rather, aspects of the present disclosure are intended to be broadly applicable to different wireless technologies, system configurations, networks and transmission protocols, some of which are illustrated by way of example in the drawings and the following description of the preferred aspects. It is shown. The detailed description and drawings are merely illustrative of the disclosure rather than limiting, the scope of the disclosure being defined by the appended claims and equivalents thereof.

Exemplary Wireless Communication System The techniques described herein may be used for various broadband wireless communication systems, including communication systems that are based on an orthogonal multiplexing scheme. Examples of such communication systems include space division multiple access (SDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, etc. Is included. The SDMA system may transmit data belonging to a plurality of user terminals simultaneously by making full use of different directions. The TDMA system may allow a plurality of user terminals to share the same frequency channel by dividing the transmission signal into different time slots where each time slot is assigned to a different user terminal. An OFDMA system utilizes orthogonal frequency division multiplexing (OFDM), which is a modulation technique that partitions the overall system bandwidth into multiple orthogonal subcarriers. These subcarriers are sometimes called tones, bins, and the like. By using OFDM, each subcarrier may be separately modulated with data. The SC-FDMA system uses interleaved FDMA (IFDMA) to transmit on subcarriers distributed across the system bandwidth, and uses localized FDMA (LFDMA) to transmit on one block of adjacent subcarriers. Alternatively, it may be transmitted in a plurality of blocks of adjacent subcarriers using enhanced FDMA (EFDMA). In general, modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDMA.

  The teachings herein may be incorporated into (eg, implemented in or performed by) various wired or wireless devices (eg, nodes). In some aspects, a wireless node implemented in accordance with the teachings herein may comprise an access point or access terminal.

  An access point (“AP”) is a Node B, Radio Network Controller (“RNC”), Evolution Node B (eNB), Base Station Controller (“BSC”), Base Transceiver Station (“BTS”), Base Station (“ BS "), transceiver function (" TF "), wireless router, wireless transceiver, basic service set (" BSS "), extended service set (" ESS "), radio base station (" RBS "), or some other Or may be realized as these, or may be known as these.

  An access terminal (“AT”) is a subscriber station, subscriber unit, mobile station (“MS”), remote station, remote terminal, user terminal (“UT”), user agent, user device, user equipment (“UE”). "), May be provided with, may be implemented as, or may be known as a user station, or some other terminology. In some implementations, the access terminal is a cellular phone, cordless phone, session initiation protocol (“SIP”) phone, wireless local loop (“WLL”) station, personal digital assistant (“PDA”), wireless connectivity capability A handheld device, a station ("STA"), or some other suitable processing device connected to a wireless modem. Accordingly, one or more aspects taught herein include a telephone (eg, a cellular phone or a smartphone), a computer (eg, a laptop), a tablet, a portable communication device, a portable computing device (eg, a personal data assistant (PDA) )), Entertainment devices (eg, music or video devices, or satellite radio), global positioning system (GPS) devices, or any other suitable device that is configured to communicate via wireless or wired media It may be incorporated into. In some aspects, the node is a wireless node. Such a wireless node may provide a connection for a network (eg, a wide area network such as the Internet or a cellular network) or a connection to a network, eg, via a wired or wireless communication link. .

  FIG. 1 illustrates a multiple access multiple input multiple output (MIMO) system 100 having an access point and a user terminal. For clarity, only one access point 110 is shown in FIG. An access point is typically a fixed station that communicates with user terminals and may be referred to as a base station or some other terminology. A user terminal may be fixed or mobile and may also be called a mobile station, a wireless device, or some other terminology. The access point 110 may communicate with one or more user terminals 120 at any given moment on the downlink and uplink. The downlink (ie, forward link) is the communication link from the access point to the user terminal, and the uplink (ie, reverse link) is the communication link from the user terminal to the access point. A user terminal may also communicate peer-to-peer with another user terminal. System controller 130 couples to the access point and provides coordination and control for the access point.

  Although some of the following disclosure describes user terminals 120 that can communicate via space division multiple access (SDMA), in certain aspects, user terminals 120 may also support some that do not support SDMA. The user terminal may be included. Thus, in such an aspect, the AP 110 may be configured to communicate with both SDMA user terminals and non-SDMA user terminals. This approach extends the useful life of older versions of user terminals (“legacy” stations), advantageously allowing them to continue to be used in the business, while newer SDMA user terminals that have been found appropriate Makes it possible to introduce

System 100 employs multiple transmit antennas and multiple receive antennas for data transmission on the downlink and uplink. Access point 110 is equipped with N _ap antennas and represents multiple inputs (MI) for downlink transmission and multiple outputs (MO) for uplink transmission. The set of selected K user terminals 120 collectively represents multiple outputs for downlink transmission and multiple inputs for uplink transmission. In pure SDMA, it is desirable to have N _ap ≧ K ≧ 1 when the data symbol streams for the K user terminals are not multiplexed in code, frequency or time by some means. K may be increased by N _ap when the data symbol stream can be multiplexed using TDMA techniques, different code channels by CDMA, disjoint sets of subbands by OFDM, and the like. Each selected user terminal transmits user specific data to the access point and / or receives user specific data from the access point. In general, each selected user terminal may be equipped with one or more (ie, N _ut ≧ 1) antennas. The selected K user terminals may have the same or different number of antennas.

  The SDMA system may be a time division duplex (TDD) system or a frequency division duplex (FDD) system. In a TDD system, the downlink and uplink share the same frequency band. In FDD systems, the downlink and uplink use different frequency bands. MIMO system 100 may also utilize a single carrier or multiple carriers for transmission. Each user terminal may be equipped with a single antenna (eg, to keep costs low) or multiple antennas (eg, if additional costs can be supported). The system 100 is also a TDMA system when user terminals 120 share the same frequency channel by dividing transmission / reception into different time slots where each time slot is assigned to a different user terminal 120. May be.

FIG. 2 illustrates a block diagram of the access point 110 and the two user terminals 120m and 120x in the MIMO system 100. The access point 110 is equipped with N _t antennas 224a to 224t. The user terminal 120m is equipped with N _{ut, m} antennas 252ma to 252mu, and the user terminal 120x is equipped with N _{ut, x} antennas 252xa to 252xu. Access point 110 is a transmitting entity on the downlink and a receiving entity on the uplink. Each user terminal 120 is a transmitting entity on the uplink and a receiving entity on the downlink. As used herein, a “transmitting entity” is an independently operating device or device that can transmit data over a wireless channel, and a “receiving entity” is an independent device that can receive data over a wireless channel. Device or device that operates as In the following description, the subscript “dn” represents the downlink, the subscript “up” represents the uplink, and N _up user terminals are selected for simultaneous transmission on the uplink. Although N _dn user terminals are selected for simultaneous transmission on the downlink, N _{Stay up-may} be equal to N _dn, or may be unequal, N _{Stay up-and} N _dn are For each scheduling interval, it can be a static value or can vary. Beam steering or some other spatial processing technique may be used at the access point and user terminal.

On the uplink, at each user terminal 120 selected for uplink transmission, TX data processor 288 receives traffic data from data source 286 and control data from controller 280. TX data processor 288 processes (eg, encodes, interleaves, and modulates) the traffic data for the user terminal based on a coding and modulation scheme associated with the rate selected for the user terminal and data symbols. Provide a stream. TX spatial processor 290 performs spatial processing on the data symbol stream and provides N _ut, N _{ut, m} transmit symbol streams for the _m antennas. Each transmitter unit (TMTR) 254 receives and processes (eg, analog converts, amplifies, filters, and frequency upconverts) each transmit symbol stream and generates an uplink signal. N _{ut, m} transmitter units 254 provide N _{ut, m} uplink signals for transmission from N _{ut, m} antennas 252 to the access point.

N _up user terminals may be scheduled for simultaneous transmission on the uplink. Each of these user terminals performs spatial processing on its data symbol stream and transmits the set of transmission symbol streams to the access point on the uplink.

At access point 110, N _ap antennas 224a through 224ap receive uplink signals from all N _up user terminals transmitting on the uplink. Each antenna 224 provides a received signal to a respective receiver unit (RCVR) 222. Each receiver unit 222 performs processing complementary to that performed by transmitter unit 254 and provides a received symbol stream. RX spatial processor 240 performs receiver spatial processing N _ap received symbol streams from N _ap receiver units 222 and provides N _{Stay up-pieces} of recovered uplink data symbol streams. Receiver spatial processing is performed according to channel correlation matrix inversion (CCMI), minimum mean square error (MMSE), soft interference cancellation (SIC), or some other technique. Each recovered uplink data symbol stream is an estimate of the data symbol stream transmitted by the respective user terminal. An RX data processor 242 processes (eg, demodulates, deinterleaves, and decodes) each recovered uplink data symbol stream according to the rate used for that stream to obtain decoded data. The decoded data for each user terminal may be provided to data sink 244 for storage and / or to controller 230 for further processing.

In the downlink, at the access point 110, the TX data processor 210 receives traffic data for N _dn user terminals scheduled for downlink transmission from the data source 208 and receives control data from the controller 230. Possibly receiving other data from the scheduler 234. Various types of data may be transmitted on different transport channels. TX data processor 210 processes (eg, encodes, interleaves, and modulates) the traffic data for each user terminal based on the rate selected for that user terminal. TX data processor 210 provides N _dn downlink data symbol streams for N _dn user terminals. TX spatial processor 220 performs spatial processing (eg, precoding or beamforming described in this disclosure) on N _dn downlink data symbol streams, and N _ap transmit symbol streams for N _ap antennas. I will provide a. Each transmitter unit 222 receives and processes a respective transmission symbol stream and generates a downlink signal. N _ap transmitter units 222 provide N _ap downlink signals for transmission from N _ap antennas 224 to user terminals.

In each user terminal 120, N _{ut, m} antennas 252 receive N _ap downlink signals from the access point 110. Each receiver unit 254 processes the received signal from the associated antenna 252 and provides a received symbol stream. RX spatial processor 260, N _ut, N _ut from _m receiver units _254, performs receiver spatial processing _m received symbol streams, the recovered downlink data symbol streams for user terminal provide. Receiver spatial processing is performed according to CCMI, MMSE, or some other technique. An RX data processor 270 processes (eg, demodulates, deinterleaves, and decodes) the recovered downlink data symbol stream to obtain decoded data for the user terminal.

At each user terminal 120, a channel estimator 278 estimates the downlink channel response and provides a downlink channel estimate, which includes channel gain estimate, SNR estimate, noise variance, and so on. But you can. Similarly, channel estimator 228 estimates the uplink channel response and provides an uplink channel estimate. The controller 280 for each user terminal typically derives a spatial filter matrix for the user terminal based on the downlink channel response matrix H _{dn, m} for that user terminal. The controller 230 derives a spatial filter matrix for the access point based on the effective uplink channel response matrix H _{up, eff} . Controller 280 for each user terminal may send feedback information (eg, downlink and / or uplink eigenvectors, eigenvalues, SNR estimates, etc.) to the access point. Controllers 230 and 280 also control the operation of various processing units at access point 110 and user terminal 120, respectively.

  FIG. 3 illustrates various components that may be utilized in the wireless device 302 that may be used within the MIMO system 100. Wireless device 302 is an example of a device that may be configured to implement the various methods described herein. The wireless device 302 may be the access point 110 or the user terminal 120.

  The wireless device 302 may include a processor 304 that controls the operation of the wireless device 302. The processor 304 may also be referred to as a central processing unit (CPU). Memory 306, which may include both read only memory (ROM) and random access memory (RAM), provides instructions and data to processor 304. A portion of the memory 306 may also include non-volatile random access memory (NVRAM). The processor 304 typically performs logic and arithmetic operations based on program instructions stored in the memory 306. The instructions in memory 306 may be executable to implement the methods described herein.

  The wireless device 302 may also include a housing 308 that may include a transmitter 310 and a receiver 312 that allow transmission and reception of data between the wireless device 302 and a remote location. Transmitter 310 and receiver 312 may be combined in transceiver 314. One or more transmit antennas 316 can be attached to the housing 308 and can be electrically coupled to the transceiver 314. The wireless device 302 may also include multiple transmitters (not shown), multiple receivers, and multiple transceivers.

  The wireless device 302 may also include a signal detector 318 that may be used to detect and quantify the level of the signal received by the transceiver 314. The signal detector 318 may detect signals such as total energy, energy per subcarrier per symbol, power spectral density, and other signals. The wireless device 302 may also include a digital signal processor (DSP) 320 for use in signal processing.

  Various components of the wireless device 302 may be coupled together by a bus system 322, which may include a power bus, a control signal bus, and a status signal bus in addition to a data bus.

Exemplary FCC Device Modes for TVWS FIG. 4 illustrates a table 400 of device modes for Television White Space (TVWS) as defined by the US Federal Communications Commission (FCC). TVWS devices include fixed devices, which typically have to be installed by an expert and have the location of the individual devices entered in the database. Mobile / portable TVWS devices include mode 1 devices and mode 2 devices. Stationary devices and mode 2 devices are called enabling stations (STAs), while devices in mode 1 operating state are called subordinate STAs.

  In addition, IEEE 802.11af includes a new “advertisement” protocol called Registration Location Query Protocol (RLQP). This new protocol carries a General Advertisement Service (GAS) action frame for TVWS device enablement. Enablement is the process by which a dependent STA (eg, mode 1 device) is enabled by an enabling STA (eg, mode 2 device). The related message is transmitted using a newly defined action frame or using RLQP.

Exemplary Enablement Procedure In this section, enhancements to enablement are described. These include (1) low overhead signaling in IEEE 802.11af to meet FCC's 60 Contact Confirmation Signal (CVS) rules for mode 1 devices, and (2) enabled mode 1 devices, even if used in TVWS Signaling to maintain enablement even when possible channels change.

  In its latest order (10-174), the FCC sends an encoded contact confirmation signal (CVS) every 60 seconds to confirm that it is within the receiving area of the enabling (mode 2 or fixed) device, mode 1 Requires devices to acquire over the air (OTA). Conventional 802.11af D0.06 signaling does not meet the above requirements. The current design proposes a “list of available channels” that is sent unencrypted in the beacon, but this list is not approved by the FCC.

  FIG. 5 shows a received message with a field indicating the current version of an unused frequency spectrum map (eg, white space map (WSM)) from the perspective of the device, such as a mode 1 device or other portable slave device. An exemplary operation 500 for using is illustrated. Operation 500 may begin at 502 by receiving a message with a field indicating a current version of a map of unused frequency spectra, where the map of unused frequency spectra is used for wireless communication. Indicates possible channels. At 504, the device has a different version of the unused frequency spectrum map than the previous version of the unused frequency spectrum map (eg, the WSM version previously received during device enablement). It may be determined whether or not. At 506, the device may use a channel for wireless communication based on the determination at 504.

  If the current version of the unused frequency spectrum map is different from the previous version of the unused frequency map (eg, a previously received version), the device may update the updated unused frequency spectrum map (eg, Request message for updated WSM). The device may then receive a response message with an updated map of the unused frequency spectrum. If the current version of the unused frequency spectrum map is the same as the previous version, the device may continue to use the current operating channel for wireless communication.

  In certain aspects described in more detail below, the message has a first field that indicates that the message is a public action message, or a field that indicates the current version of the map of frequency spectrum that the message is unused. A frame having at least one of the second fields indicating inclusion may be included. The frame may be a beacon frame or a broadcast management frame, for example.

  FIG. 6 is an illustration for using a message with a field indicating the current version of a map of unused frequency spectrum (eg, WSM) from the perspective of the device, such as a mode 2 device or other portable enabling device. An exemplary operation 600 is illustrated. Operation 600 may begin at 602 by determining a map version of the unused frequency spectrum, where the map of unused frequency spectrum indicates available channels for wireless communication. At 604, a message having a field indicating a version of the unused frequency spectrum map may be transmitted. At 606, a request message for an updated map of unused frequency spectrum (eg, updated WSM) may be received. In response to the received request message, the device may send a response message with an updated unused frequency spectrum map at 608. In certain aspects, operation 600 may include, for example, transmitting a beacon frame that includes an indication of the time of arrival of the message (with a field indicating a version of the unused frequency spectrum).

  FIG. 7 illustrates an exemplary contact confirmation information element (CVIE) 700 that may be sent to meet FCC CVS requirements. The CVS may be sent in regular intervals to maintain permission to send in TVWS. The CVIE 700 includes an element identifier (ID) 702 that identifies this information element (IE) as a CVS. CVIE 700 also includes a length field 704 that indicates the length of the remaining portion of CVIE 700. CVIE 700 includes a white space map identifier (ID) 706. This MAP ID 706 may include the white space map version number of the currently valid white space map, or other identifier (as 8.4.2af1.1 defined in TGaf Draft 0.05).

  The CVIE 700 is most likely to be included in all beacon frames transmitted by the enabling STA. CVIE 700 may be included in the probe response.

  CVIE 700 has many benefits. The CVIE 700 is broadcast over the air when needed. CVIE 700 may be encoded. In this way, enabled STAs can check whether the list of available channels they have is still valid, while non-enabled STAs cannot get that list. Broadcasting WSM is not allowed. CVIE 700 also has a small overhead, whereas transmitting the entire white space map incurs a large overhead.

  As described above, the subordinate STA may compare the MAP ID 706 in the CVIE 700 with the MAP ID received during enablement. If the MAP ID has not changed, the STA can continue to use the channel. If the MAP ID has changed, the STA (1) re-enables enablement (eg, using an existing enablement procedure, such as sending a request message for re-enablement to the enabling device). Either start or (2) request a new WSM to check if the channel the STA is using (ie, the current working channel) is still available Should be done.

  Broadcast integrity protection (BIP) may be negotiated as part of a secure association for certain aspects to increase CVS protection and ensure sender integrity. In other words, in certain aspects, CVS may be sent with BIP in a robust broadcast management frame.

  FIG. 8 illustrates an exemplary broadcast management frame 800 that includes the CVIE 700 of FIG. 7 in accordance with certain aspects of the present disclosure. A broadcast management frame 800 with a CVI may be sent once every beacon interval to ensure that all enabled STAs of the AP can maintain their enablement. Broadcast management frame 800 may include an IEEE 802.11 header 802, a management message integrity check (MIC) information element (MMIE) 804, and a frame check sequence (FCS) 806.

  Certain aspects of the present disclosure may include a restoration procedure when the CVIE map ID 706 changes (ie, the current WSM version does not match the WSM version received during enablement). In one exemplary scenario, STA1 is not de-enabled, but the current map version in the beacon's CVIE has changed. For STA1, it is wasteful to restart the enablement procedure if the status of the channel used by STA1 has not changed (ie, the current operating channel of STA1 is still available).

  Thus, certain aspects of the present disclosure use signaling that allows STA1 to obtain an updated WSM and check whether the current operating channel is still valid. In certain aspects, this new white space map may be retrieved using registered location query protocol (RLQP) messaging.

  FIG. 9 illustrates an exemplary RLQP WSM request message format 900 in accordance with certain aspects of the present disclosure. A WSM request message may be sent by the STA when the CVIE 700 in the beacon indicates a different (ie, new) WSM ID. In the WSM request message format 900, an information identifier (ID) field 902 may be set to “request a new WSM” to be determined in several ways. The WSM request message also includes a length field 904 indicating the length of the remaining portion of the WSM request message, the requesting address 906 of the STA requesting the WSM, and the responding address 908 of the enabling STA to which the STA is subordinate. And a cause / effect code field 910 and an enablement ID field 912 set to a value (enablement ID) received when the device is enabled. The enablement ID may include an FCC ID that may include a guarantee code and a product code. A value indicating the current operating channel of the STA may be associated with the WSM request message in the current channel field 914.

  In response to receiving the WSM request message, the enabling STA may send a de-enablement message or a WSM response message with the new WSM. The enabling STA may send a enabling message if the STA's current channel is no longer available according to the new WSM. If the message is to be sent with encryption, a double protected RLQP action frame may be used.

  FIG. 10 illustrates an exemplary RLQP WSM response message format 1000 in accordance with certain aspects of the present disclosure. The WSM response message format 1000 may include an information ID field 902 configured to “respond to a WSM request” that will be determined in several ways. The enablement ID field 912 may be set to a value obtained during the last enablement. The enablement ID allows the enabler to confirm that the subordinate STA is indeed enabled and that the enabling STA has been enabled by the enabling STA before sending a new white space map 1002.

  The WSM 1002 included in the WSM response message may include the latest (ie, most recent) map ID used for contact verification. This is more efficient than FCC Id confirmation. WSM 1002 should include the current operating channel reported by the STA if this channel is still available. Upon receiving the WSM response message, the STA may switch the channel to one or more channels indicated as available in the updated WSM 1002, or to the power indicated in the updated WSM 1002. Therefore, the power level may be changed. If the message is to be sent with encryption, a double protected RLQP action frame may be used.

  In certain aspects, a WSM query message or WSM response message may be carried using a public action message instead of being carried as an information element (IE) in RLQP.

  The DSE WSM query frame is a public action frame used to query the current WSM. FIG. 11 illustrates an exemplary WSM query message format for a public action frame in accordance with certain aspects of the present disclosure. In the WSM query message format 1100, the category field 1102 may be set to a value (category value) for a public action specified in Table 8-36 to indicate that the WSM query message has a public action frame format. Good. The action value field 1104 (or action field) may be set to indicate a DSE WSM query. The enablement identifier (ID) 912 may be set to the enablement identifier received during the STA's enablement. The current channel field 914 may be set to the current operating channel of the STA.

  FIG. 12 illustrates an exemplary WSM response message format 1200 for a public action frame in accordance with certain aspects of the present disclosure. In the WSM response message format 1200, the category field 1102 may be set to a value (category value) for the public action specified in Table 8-36. The action value field 1104 may be set to indicate a DSE WSM response.

  FIG. 20 illustrates an exemplary WSM message format 2000 for a public action frame in accordance with certain aspects of the present disclosure. WSM messages may be sent in public action frames, providing a WSM version number or other identifier, and public action frames may be classified as beacon frames or broadcast management frames. In WSM message format 2000, the category field 1102 may be set to a value (category value) for a public action specified in Table 8-36. The action value field 1104 may be set to indicate transmission of a white space MAP ID, and the white space MAP ID may be included in the WSM identifier information element (WSMIIE) 2002. In certain aspects, WSMIIE 2002 may have the same fields as CVIE 700 of FIG. 7 including element ID 702, length field 704, and MAP ID 706. This MAP ID 706 may include the white space map version number of the currently valid white space map, or other identifier (as 8.4.2af1.1 defined in TGaf Draft 0.05).

  FIG. 21 illustrates an exemplary broadcast management frame 2100 that includes the WSM message format 2000 of FIG. 20, in accordance with certain aspects of the present disclosure. The broadcast management frame 2100 with WSMIEE 2002 may be sent as a public action frame once every beacon interval to ensure that all enabled STAs of the AP can maintain their enablement. Broadcast management frame 2100 may include an IEEE 802.11 header 802, a management message integrity check (MIC) information element (MMIE) 804, and a frame check sequence (FCS) 806.

Exemplary Database Access for Mode 2 Devices TVWS devices operating in mode 2 have channels available for the current location (at least once every 24 hours) and mode 1 device enablement functions (eg, Database access to retrieve available channels for FCC ID check for mode 1 devices requesting enablement may be required. Data access may impose separate MAC / PHY (Media Access Control / Physical Layer) technology requirements for Internet access to the database. Such access may entail additional costs for mode 2 devices that primarily function as devices in intranet type applications. Examples of intranet applications include intranets for communication between workers in the field, networks for coordination of emergency services in disaster areas, and intranets that do not have Internet access due to security restrictions.

  To address this issue, certain embodiments of the present disclosure include design protocols and messaging that allow mode 2 capable devices to access the database via adjacent mode 2 / fixed devices. This allows for mode 2 capable devices that do not have separate internet access to operate as mode 2 / fixed devices using TVWS MAC / PHY. Furthermore, this avoids requiring an association for database access since database access is required sporadically. Alternatively, a General Advertisement Service (GAS) frame may be used to tunnel messages for database access.

  FIG. 13 is utilized for the current location of a device, for example, from the perspective of a device configured as a mode 2 capable device, via an adjacent portable or fixed enabling device (eg, a fixed or mode 2 device). Illustrated is an example operation 1300 for accessing a database of possible channels. Operation 1300 is available at 1302 to the current location of the device via an adjacent portable enabling device or a fixed enabling device (eg, a mode 2 or fixed TVWS device as defined by the FCC). You may start by accessing the channel database. At 1304, the device may enable one or more other devices (eg, portable subordinate devices) for wireless communication over one or more of the available channels.

  In certain aspects, a device may query neighboring devices for database access capabilities. In certain aspects, a device may receive a registered location query protocol (RLQP) message from a neighboring device indicating that the neighboring device is database accessible (DBAC). In certain aspects, a device may receive an RLQP message with a vendor specific information element (IE) indicating database access parameters or protocols for one or more database vendors from neighboring devices.

  In certain aspects, at 1302, accessing a database of available channels can be obtained via an adjacent device, obtaining enablement from the adjacent device to operate as a portable subordinate device. Accessing the database may be included by sending a query message to the database of the channel. Act 1300 may further include receiving a response message with an available channel. In accordance with certain aspects, the portable slave device changes from a mode 1 device to a mode 2 device when receiving a response message with an available channel for the current location.

  FIG. 14 is for accessing a database of channels available to adjacent portable enableable devices (eg, mode 2 capable devices), eg, from the perspective of a device configured as a fixed or mode 2 device. An exemplary operation 1400 is illustrated. Operation 1400 may begin at 1402 by enabling a neighboring (portable) enableable device that is not enabled, such as a (portable) subordinate device. At 1404, the device may access a database of available channels for enabled neighboring devices. The device may then send an indication of available channels (eg, a white space map) to neighboring devices at 1406.

  In accordance with certain aspects, the device may send an RLQP message indicating that the device is a DBAC. In certain aspects, an apparatus may send an RLQP message with a vendor specific IE indicating database access parameters or protocols for one or more database vendors.

  FIG. 15 illustrates a diagram of database access to a mode 2 capable AP 1502 via a mode 2 access point (AP) 1504 in an example wireless communication network 1500, in accordance with certain aspects of the present disclosure. Yes. Initially, mode 2 capable AP 1502 may signal mode 2 AP 1504 to obtain database access allowing operation as a mode 2 device. Once a mode 2 capable AP 1502 is enabled as a mode 2 device, the AP 1502 may enable one or more mode 1 STAs 1506 in the network.

  In certain aspects, a mode 2 device may indicate that the device is “database accessible (DBAC)”, for example, in a beacon or in an RLQP message. Options for indicating such capabilities are described below.

  FIG. 16 illustrates an over-the-air (OTA) database access procedure in accordance with certain aspects of the present disclosure. In a first step at 1602, a mode 2 capable STA that is not enabled or de-enabled may obtain an enablement to operate in mode 1. All enablement procedures for mode 1 enablement typically must follow. Once the STA is enabled as a mode 1 device, in the second step at 1604, a database query message may be sent to the database through the DBAC mode 2 device. These database query messages may be carried in GAS frames in certain aspects.

  There may be several over-the-air (OTA) protocol options for database query / response messages. In certain aspects, a new protocol may be defined for carrying database queries / responses in public action frames. As an advantage, the message may have lower overhead, but this solution involves yet another tunneling protocol. In other aspects, database queries / responses may be added to IEEE 802.11u ANQP (Access Network Query Protocol). Although database queries / responses may fit well with ANQP functionality, ANQP support is not currently required in 802.11af. Yet another option is to extend RLQP to include database query / response tunneling. The RLQP already exists in 802.11af (eg, for the mode 1 enablement described above).

  Assuming database access, each database vendor may have its own proprietary database query / response protocol or parameters. A DBAC mode 2 device may indicate a database that it can access using a vendor specific IE.

  FIG. 17 illustrates an extension to the RLQP information identifier (ID) definition for OTA database access in accordance with certain aspects of the present disclosure. Three types of information elements (IEs) may be added to the RLQP for database access. RLQP may be extended to include RLQP IE 1702 for capability queries. Separate query responses may be required for database access capabilities. The beacon may only indicate that the mode 2 device is RLQP capable, but may not indicate capability options with RLQP. The RLQP may also be extended to include an RLQP IE 1704 that indicates the capability of OTA database access for capability listing. Vendor-specific IEs may be used with indications defined by one or more database vendors. These RLQP vendor specific IEs may indicate database access parameters or protocols from the database vendor. The three types of RLQP IEs may include a RLQP IE 1706 for carrying database access queries and corresponding response messages.

  FIG. 18 illustrates an exemplary RLQP database access query message format 1800 for the RLQP IE 1706 in accordance with certain aspects of the present disclosure. The RLQP query message sent in the RLQP IE 1706 may include a database query, a database ID field 1802, and an information identifier field 902 set to indicate the database query message 1804. Database ID field 1802 may include a uniform resource locator (URL) or Internet Protocol (IP) address for a database or vendor specific database identifier. Database query message 1804 may be security encapsulated to form the security encapsulated database query message shown in FIG. The enablement ID field 912 may be set to an identifier obtained during mode 1 enablement of a mode 2 capable device.

  FIG. 19 illustrates an exemplary RLQP database access response message format 1900 in accordance with certain aspects of the present disclosure. The RLQP database response may indicate that the database is inaccessible, a response from the database, or that no channel was available for the current location of the mode 2 capable device. The RLQP database response sent in the RLQP IE 1706 includes an information ID field 902 that is set to indicate the database response, and a database response message 1902, which is security encapsulated, as shown in FIG. The security encapsulated database response message shown in FIG.

  (Security Encapsulation) The content of the database query and response message may depend on the exact protocol between the interrogating mode 2 capable STA and the mode 2 / fixed device and will be determined.

  Various operations of the methods described above may be performed by any suitable means capable of performing the corresponding function. Means may include various hardware and / or software components and / or modules including, but not limited to, circuits, application specific integrated circuits (ASICs) or processors. In general, where operations are shown in the figures, they may have corresponding control means plus function components with similar reference numbers. For example, the operation 500 illustrated in FIG. 5 corresponds to the means 500A illustrated in FIG. 5A.

  For example, the means for transmitting may be transmitter unit 222 of access point 110 illustrated in FIG. 2, transmitter unit 254 of user terminal 120 illustrated in FIG. 2, or wireless device illustrated in FIG. A transmitter, such as 302 transmitter 310, may be included. For example, the means for receiving may be the receiver unit 222 of the access point 110 illustrated in FIG. 2, the receiver unit 254 of the user terminal 120 illustrated in FIG. 2, or the wireless device illustrated in FIG. A receiver, such as 302 receiver 312, may be included. The means for processing, the means for determining, the means for accessing, the means for enabling or the means for querying may comprise a processing system, the processing system being illustrated in FIG. One or more processors, such as RX data processor 270, TX data processor 288 and / or controller 280 of user terminal 120, or RX data processor 242, TX data processor 210 and / or controller 230 of access point 110 But you can.

  As used herein, the term “determining” encompasses a wide variety of actions. For example, “determining” means calculating, calculating, processing, deriving, examining, searching (eg, searching in a table, database, or another data structure). Confirmation, and the like. Also, “determining” can include receiving (eg, receiving information), accessing (eg, accessing data in a memory), and the like. Also, “determining” can include resolving, selecting, choosing, establishing, and the like.

  As used herein, the phrase “at least one” of a list of items refers to any combination of those items, including a single member. By way of example, “at least one” of a, b or c is intended to cover: a, b, c, ab, ac, bc, and abc Yes.

  Various exemplary logic blocks, modules and circuits described in connection with this disclosure may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate array signals (FPGAs) or Other programmable logic devices (PLDs), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein may be implemented or performed. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. A processor can also be a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors with a DSP core, or any other such configuration. realizable.

  The method or algorithm steps described in connection with this disclosure may be implemented directly in hardware, in software modules executed by a processor, or in a combination of the two. A software module may reside in any form of storage medium that is known in the art. Some examples of storage media that may be used include random access memory (RAM), read only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, etc. . A software module may contain a single instruction or many instructions and may be distributed across several different code segments, between different programs, and across multiple storage media. A storage medium may be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In an alternative embodiment, the storage medium may be integral to the processor.

  The methods disclosed herein include one or more steps or actions for achieving the described method. The method steps and / or actions may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions can be modified without departing from the scope of the claims.

  The functions described can be implemented in hardware, software, firmware, or any combination thereof. When implemented in hardware, an exemplary hardware configuration may comprise a processing system at a wireless node. The processing system may be implemented with a bus architecture. The bus may include any number of interconnecting buses and bridges depending on the specific application of the processing system and the overall design constraints. The bus can link together various circuits including a processor, a machine readable medium, and a bus interface. A bus interface can be used to connect a network adapter to a processing system via a bus, among other things. This network adapter may be used to realize the signal processing function of the PHY layer. In the case of user terminal 120 (see FIG. 1), a user interface (eg, keypad, display, mouse, joystick, etc.) may also be connected to the bus. The bus can also link various other circuits such as timing sources, peripherals, voltage regulators, power management circuits, and the like. These circuits are well known in the art and will not be described further.

  The processor may be responsible for general processing including bus management and execution of software stored on machine-readable media. The processor can be implemented by one or more general purpose and / or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors and other circuits that can execute software. Software should be construed broadly to mean instructions, data, or any combination thereof, whether referred to by software, firmware, middleware, microcode, hardware description language, or other names. is there. Machine-readable media include, for example, RAM (random access memory), flash memory, ROM (read only memory), PROM (programmable read only memory), EPROM (erasable programmable read only memory), EEPROM (electrically Erasable programmable read-only memory), registers, magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof. A machine-readable medium may be incorporated into a computer program product. The computer program product may comprise packaging material.

  In a hardware implementation, the machine-readable medium can be part of a processing system that is separate from the processor. However, as those skilled in the art will readily appreciate, the machine-readable medium, or any portion thereof, may be external to the processing system. By way of example, a machine readable medium may include a transmission line, a carrier wave modulated by data, and / or a computer product separate from a wireless node, all of which may be accessed by a processor through a bus interface. Alternatively or additionally, machine-readable media, or any portion thereof, may be incorporated into the processor in cases where caches and / or general purpose register files are used.

  The processing system has one or more microprocessors that provide processor functionality and external memory that provides at least a portion of the machine-readable medium, all linked together with other support circuitry through an external bus architecture. It may be configured as a general-purpose processing system. Alternatively, the processing system can perform the various functions described throughout this disclosure, with a processor, bus interface, user interface (in the case of an access terminal) and support embedded in a single chip. Using an ASIC (application specific integrated circuit) having a circuit and at least part of a machine readable medium, or one or more FPGAs (field programmable gate arrays), PLDs (programmable logic devices), controllers, states It may be implemented using machines, gated logic, discrete hardware components, or any other suitable circuit or combination of circuits. Those skilled in the art will recognize how best to implement the described functionality for a processing system, depending on the particular application and the overall design constraints imposed on the overall system.

  A machine-readable medium may comprise a number of software modules. A software module includes instructions that, when executed by a processor, cause a processing system to perform various functions. The software module may include a transmission module and a reception module. Each software module may reside on a single storage device or may be distributed across multiple storage devices. As an example, a software module may be loaded from a hard drive into RAM when a trigger event occurs. During execution of the software module, the processor may load some of the instructions into the cache to increase access speed. One or more cache lines can then be loaded into a general purpose register file for execution by the processor. When referring to the functionality of a software module below, it will be understood that such functionality is implemented by the processor when instructions from that software module are executed.

  If implemented in software, the functions may be stored as one or more instructions or code on a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Good. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer readable media may be RAM, ROM, EEPROM, CD-ROM, or other optical disk storage device, magnetic disk storage device, or other magnetic storage device, or by computer. Any other medium that can be accessed and used to carry or store the desired program code in the form of instructions or data structures may be included. Any connection is also properly termed a computer-readable medium. For example, software can be sent from a website, server, or other remote source, such as coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless, such as infrared (IR), radio and microwave. When transmitted using technology, wireless technologies such as coaxial cable, fiber optic cable, twisted pair, DSL, or infrared, radio and microwave are included in the definition of the medium. Discs (disk and disc) as used herein include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs. It is out. Here, the disk normally reproduces data magnetically, while the disk optically reproduces data by a laser. Thus, in some aspects computer readable media may include non-transitory computer readable media (eg, tangible media). Moreover, in other aspects computer readable media may include transitory computer readable media (eg, signals). Combinations of the above should also be included within the scope of computer-readable media.

  Thus, certain aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer readable medium having instructions stored (and / or encoded) thereon, the instructions performing the operations described herein. And can be executed by one or more processors. In certain aspects, the computer program product may include package material.

  Moreover, modules and / or other suitable means for implementing the methods and techniques described herein can be downloaded and / or otherwise obtained by the adapted user terminal and / or base station. Should be recognized correctly. For example, such a device can be coupled to a server to facilitate the transfer of means for performing the methods described herein. Alternatively, the various methods described herein so that the user terminal and / or base station can obtain various methods when coupling the storage means to the device or providing the storage means to the device. Can be provided via storage means (for example, a physical storage medium such as RAM, ROM, compact disk (CD) or floppy disk). In addition, any other suitable technique that provides the device with the methods and techniques described herein may be utilized.

  It is to be understood that the claims are not limited to the precise configuration and components illustrated above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.
  The invention described in the scope of claims at the time of filing the present application will be appended.
  [1] In a device for wireless communication,
  The unused frequency spectrum map is configured to receive a message having a field indicating a current version of the unused frequency spectrum map, and the unused frequency spectrum map is received indicating an available channel for the wireless communication. Machine,
  Determine whether the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, and based on the determination, determine a channel for the wireless communication And a processing system configured to be used.
  [2] The apparatus according to [1], wherein the previous version includes a version of the map of the unused frequency spectrum received during enablement of the apparatus.
  [3] If the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, send a request message for the updated unused frequency spectrum map. The apparatus according to [1], further comprising a transmitter configured to.
  [4] The request message is:
  At least one of an address of the device, an enabling device address, an enablement identifier (ID), or a field indicating the current operating channel of the device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The apparatus of [3], comprising at least one of a plurality of field lengths.
  [5] The request message includes at least one of an address of the device, an address of an enabling device, an enablement identifier (ID), or a field indicating a current operation channel of the device,
  The receiver is configured to receive a response message having a map of the updated unused frequency spectrum;
  The updated unused frequency spectrum map includes the current operating channel if the current operating channel of the device is still available;
  The apparatus according to [3], wherein the apparatus continues to use the current operating channel for the wireless communication based on the received updated map of unused frequency spectrum.
  [6] The receiver is configured to receive a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message A category field indicating that the response message is a public action message; an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum; The device according to [3], including at least one of an address, an enabling device address, and an enablement ID.
  [7] configured to send a request message for re-enablement to the enabling device if the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map. The apparatus according to [1], further comprising a transmitter.
  [8] If the current version of the unused frequency spectrum map is the same as the previous version of the unused frequency spectrum map, the device can be used for the wireless communication. The apparatus according to [1], wherein one of the active channels is used.
  [9] The message is:
  An indication that the message is a contact confirmation signal (CVS);
  A length field indicating the length of the field indicating the current version of the unused frequency spectrum map;
  Beacon frames or broadcast management frames, or
  A first field indicating that the message is a public action message, or a second field indicating that the message includes the first field indicating the current version of the map of the unused frequency spectrum Including at least one of the frames having at least one of
  The display has an information element (IE) identifier (ID);
  The apparatus according to [1], wherein the beacon frame or the broadcast management frame includes a management message integrity check (MIC) information element (MMIE).
  [10] In a method for wireless communication,
  Receiving a message at a device having a field indicating a current version of an unused frequency spectrum map, wherein the unused frequency spectrum map indicates an available channel for the wireless communication;
  Determining whether the current version of the unused frequency spectrum map is different from a previous version of the unused frequency spectrum map;
  Using a channel for the wireless communication based on the determination.
  [11] The method of [10], wherein the previous version includes a version of the map of the unused frequency spectrum received during enablement of the device.
  [12] If the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, send a request message for an updated unused frequency spectrum map The method according to [10], further comprising:
  [13] The request message is:
  At least one of an address of the device, an enabling device address, an enablement identifier (ID), or a field indicating the current operating channel of the device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The method of [12], comprising at least one of the field lengths.
  [14] further comprising receiving a response message having a map of the updated unused frequency spectrum;
  The request message includes at least one of an address of the device, an address of an enabling device, an enablement identifier (ID), or a field indicating a current operating channel of the device;
  The updated unused frequency spectrum map includes the current operating channel if the current operating channel of the device is still available;
  The method of claim 12, wherein the apparatus continues to use the current operating channel for the wireless communication based on the received updated map of unused frequency spectrum.
  [15] further comprising receiving a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message A category field indicating that the response message is a public action message; an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum; The method according to [12], including at least one of an address, an enabling device address, and an enablement ID.
  [16] If the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, further send a request message for re-enablement to the enabling device. The method of [10] comprising.
  [17] If the current version of the unused frequency spectrum map is the same as the previous version of the unused frequency spectrum map, the device can be used for the wireless communication. The method according to [10], wherein one of the active channels is used.
  [18] The message is:
  An indication that the message is a contact confirmation signal (CVS);
  A length field indicating the length of the field indicating the current version of the unused frequency spectrum map;
  Beacon frames or broadcast management frames, or
  A first field indicating that the message is a public action message, or a second field indicating that the message includes the first field indicating the current version of the map of the unused frequency spectrum Including at least one of the frames having at least one of
  The display has an information element (IE) identifier (ID);
  The method of [10], wherein the beacon frame or the broadcast management frame comprises a management message integrity check (MIC) information element (MMIE).
  [19] In an apparatus for wireless communication,
  Means for receiving a message having a field indicating a current version of an unused frequency spectrum map, wherein the unused frequency spectrum map indicates an available channel for the wireless communication;
  Means for determining whether the current version of the map of unused frequency spectra is different from a previous version of the map of unused frequency spectra;
  Means for using a channel for the wireless communication based on the determination.
  [20] The apparatus of [19], wherein the previous version includes a version of the unused frequency spectrum map received during enablement of the apparatus.
  [21] If the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, send a request message for an updated unused frequency spectrum map [19] The device according to [19], further comprising:
  [22] The request message is:
  At least one of an address of the device, an enabling device address, an enablement identifier (ID), or a field indicating the current operating channel of the device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The apparatus of [21], comprising at least one of the field lengths.
  [23] The request message includes at least one of an address of the device, an address of an enabling device, an enablement identifier (ID), or a field indicating the current operating channel of the device;
  The means for receiving is configured to receive a response message having a map of the updated unused frequency spectrum;
  The updated unused frequency spectrum map includes the current operating channel if the current operating channel of the device is still available;
  The apparatus according to [21], wherein the apparatus continues to use the current operating channel for the wireless communication based on the received updated map of unused frequency spectrum.
  [24] The means for receiving is configured to receive a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message A category field indicating that the response message is a public action message; an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum; The device according to [21], including at least one of an address, an enabling device address, and an enablement ID.
  [25] means for sending a request message for re-enablement to the enabling device if the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map; The device according to [19].
  [26] If the current version of the unused frequency spectrum map is the same as the previous version of the unused frequency spectrum map, the apparatus can be used for the wireless communication. An apparatus according to [19], wherein one of the active channels is used.
  [27] The message is:
  An indication that the message is a contact confirmation signal (CVS);
  A length field indicating the length of the field indicating the current version of the unused frequency spectrum map;
  Beacon frames or broadcast management frames, or
  A first field indicating that the message is a public action message, or a second field indicating that the message includes the first field indicating the current version of the map of the unused frequency spectrum Including at least one of the frames having at least one of
  The display has an information element (IE) identifier (ID);
  The apparatus according to [19], wherein the beacon frame or the broadcast management frame includes a management message integrity check (MIC) information element (MMIE).
  [28] In a computer program product for wireless communication,
  Including a computer readable medium,
  The computer readable medium is
  Executable to receive a message at a device having a field indicating a current version of an unused frequency spectrum map, wherein the unused frequency spectrum map indicates an available channel for the wireless communication. Instructions to show,
  Instructions executable to determine whether the current version of the unused frequency spectrum map is different from a previous version of the unused frequency spectrum map;
  A computer program product comprising instructions executable to use a channel for the wireless communication based on the determination.
  [29] In the wireless node,
  At least one antenna and
  Via the at least one antenna, configured to receive a message having a field indicating a current version of a map of unused frequency spectrum, the map of unused frequency spectrum is the wireless communication A receiver indicating available channels for
  Determine whether the current version of the unused frequency spectrum map is different from the previous version of the unused frequency spectrum map, and based on the determination, determine a channel for the wireless communication A wireless node comprising a processing system configured for use.
  [30] In a first device for wireless communication,
  A processing system configured to determine a version of an unused frequency spectrum map, wherein the unused frequency spectrum map indicates available channels for the wireless communication;
  And a transmitter configured to transmit a message having a field indicating a version of the map of the unused frequency spectrum.
  [31] The first apparatus according to [30], wherein the unused frequency spectrum map indicates the usable channels in a television white space (TVWS).
  [32] further comprising a receiver configured to receive a request message for the updated unused frequency spectrum map;
  The request message is
  At least one of an address of a second device that sent the request message, an address of the first device, an enablement identifier (ID), or a field indicating a current operating channel of the second device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The first device of [30], comprising at least one of a plurality of field lengths.
  [33] further comprising a receiver configured to receive a request message for the updated unused frequency spectrum map;
  The transmitter is configured to transmit a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message The first device according to [30], including at least one of an address of a second device that has transmitted the request message, an address of the first device, or an enablement ID.
  [34] further comprising a receiver configured to receive a request message for the updated unused frequency spectrum map;
  The transmitter is configured to transmit a response message;
  The response message is
  The updated unused frequency spectrum map; and
  A category field indicating that the request message is a public action message, an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum, the first field The first device according to [30], comprising at least one of a device address, an enabling device address, or an enablement identifier (ID).
  [35] The first device of [30], further comprising a receiver configured to receive from the second device a request message for re-enablement to the first device.
  [36] The first device according to [30], wherein the message includes an indication that the message is a contact confirmation signal (CVS).
  [37] The first device according to [30], wherein the message includes a beacon frame or a broadcast management frame, and the beacon frame or the broadcast management frame includes a management message integrity check (MIC) information element (MMIE). .
  [38] The transmitter is configured to transmit the beacon frame including an indication of the time of arrival of the field indicating the version of the MMIE and a map of the unused frequency spectrum. [37] 1st apparatus.
  [39] In a method for wireless communication,
  Determining a version of an unused frequency spectrum map at a first device, wherein the unused frequency spectrum map indicates available channels for the wireless communication;
  Sending a message having a field indicating a version of the map of the unused frequency spectrum.
  [40] The method of [39], wherein the unused frequency spectrum map indicates the available channels in a television white space (TVWS).
  [41] further comprising receiving a request message for the updated map of the unused frequency spectrum;
  The request message is
  At least one of an address of a second device that sent the request message, an address of the first device, an enablement identifier (ID), or a field indicating a current operating channel of the second device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The method of [39], comprising at least one of the field lengths.
  [42] receiving a request message for an updated map of the unused frequency spectrum;
  Sending a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message The method of [39], comprising: at least one of an address of a second device that has transmitted the request message, an address of the first device, or an enablement ID.
  [43] receiving a request message for an updated map of the unused frequency spectrum;
  Sending a response message;
  The response message is
  The updated unused frequency spectrum map; and
  A category field indicating that the request message is a public action message, an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum, the first field The method of [39], comprising at least one of a device address, an enabling device address, or an enablement identifier (ID).
  [44] The method of [39], further comprising receiving a request message for a re-enablement to the first device from a subordinate device.
  [45] The method of [39], wherein the message includes an indication that the message is a contact confirmation signal (CVS).
  [46] The method of [39], wherein the message includes a beacon frame or a broadcast management frame, and the beacon frame or the broadcast management frame includes a management message integrity check (MIC) information element (MMIE).
  [47] The method of [46], further comprising transmitting the beacon frame including an indication of a time at which the field arrives indicating a version of the map of the unused frequency spectrum and the unused frequency spectrum.
  [48] In a first apparatus for wireless communication,
  Means for determining a version of an unused frequency spectrum map, the unused frequency spectrum map indicating available channels for the wireless communication;
  Means for transmitting a message having a field indicating a version of the map of the unused frequency spectrum.
  [49] The first device according to [48], wherein the map of the unused frequency spectrum indicates the usable channels in a television white space (TVWS).
  [50] further comprising means for receiving a request message for an updated map of the unused frequency spectrum;
  The request message is
  At least one of an address of a second device that sent the request message, an address of the first device, an enablement identifier (ID), or a field indicating a current operating channel of the second device;
  Registration Location Query Protocol (RLQP) message, or
  At least one of a category field indicating that the request message is a public action message, or an action field indicating that the request message is for requesting the updated map of unused frequency spectrum. Including
  The RLQP message is an information ID field indicating that the request message is for requesting the updated map of unused frequency spectrum, or a length indicating the length of the remaining part of the request message. The first device of [48], comprising at least one of the field lengths.
  [51] further comprising means for receiving a request message for the updated map of unused frequency spectrum;
  The means for transmitting is configured to transmit a response message;
  The response message is
  The updated unused frequency spectrum map; and
  An information identifier (ID) field indicating that the response message is in response to the request message for the updated unused frequency spectrum map; a length field indicating the length of the remaining portion of the response message The first device according to [48], including at least one of an address of a second device that has transmitted the request message, an address of the first device, or an enablement ID.
  [52] further comprising means for receiving a request message for an updated map of the unused frequency spectrum;
  The means for transmitting is configured to transmit a response message;
  The response message is
  The updated unused frequency spectrum map; and
  A category field indicating that the request message is a public action message, an action field indicating that the response message is in response to the request message for the updated map of unused frequency spectrum, the first field The first device of [48], comprising at least one of a device address, an enabling device address, or an enablement identifier (ID).
  [53] The first device according to [48], further comprising means for receiving a request message for re-enablement to the first device from the second device.
  [54] The first device of [48], wherein the message includes an indication that the message is a contact confirmation signal (CVS).
  [55] The first device according to [48], wherein the message includes a beacon frame or a broadcast management frame, and the beacon frame or the broadcast management frame includes a management message integrity check (MIC) information element (MMIE). .
  [56] The means for transmitting is configured to transmit the beacon frame including an indication of the MMIE and the time that the field arrives indicating a version of the unused frequency spectrum map. ] The 1st apparatus of description.
  [57] In a computer program product for wireless communication,
  Including a computer readable medium,
  The computer readable medium is
  Instructions that are executable to determine a version of an unused frequency spectrum map at the device, wherein the unused frequency spectrum map indicates channels available for the wireless communication;
  A computer program product comprising instructions executable to send a message having a field indicating a version of the map of said unused frequency spectrum.
  [58] At the access point:
  At least one antenna;
  A processing system configured to determine a version of an unused frequency spectrum map, wherein the unused frequency spectrum map indicates available channels for the wireless communication;
  An access point comprising: a transmitter configured to transmit a message with a field indicating a version of the unused frequency spectrum map via the at least one antenna.
  [59] In an apparatus for wireless communication,
  A processing system,
  The processing system includes:
  Accessing a database of available channels for the current location of the device, via a neighboring device;
  An apparatus configured to enable one or more other apparatuses for the wireless communication via one or more of the available channels.
  [60] The apparatus according to [59], wherein the available channels include channels available in a television white space (TVWS).
  [61] The apparatus of [59], wherein the processing system is configured to access the database without association.
  [62] further comprising a transmitter;
  The processing system is configured to access the database by obtaining an enablement to operate as a portable device from the neighboring device, and the transmitter is configured to access the database via the neighboring device. The apparatus of [59], configured to send a query message to the database of possible channels.
  [63] The apparatus according to [62], wherein the query message is included in a general advertisement service (GAS) frame.
  [64] The apparatus of [62], wherein the query message includes a registered location query protocol (RLQP) query message.
  [65] The RLQP query message includes an information identifier (ID) field indicating that the RLQP query message is for querying the database, a length field indicating the length of the remaining portion of the RLQP query message, [64] The apparatus of [64], comprising at least one of an address of the apparatus, an address of the neighboring apparatus, an enablement ID, or a database ID field identifying the database.
  [66] The apparatus according to [64], wherein the RLQP query message includes a security encapsulated database query message.
  [67] further comprising a receiver;
  The receiver is configured to receive a response message having the available channel, the response message being an indication of the available channel and the response message responding to the query message. Information identifier (ID) field indicating the length of the remaining portion of the response message, at least one of the address of the device, or the address of the adjacent device, and the usable The apparatus of [62], wherein the display of the correct channel includes the security encapsulated database response message.
  [68] The apparatus according to [59], wherein the processing system is configured to inquire the adjacent apparatus about an access capability to the database.
  [69] In a method for wireless communication,
  Accessing a database of available channels for a device's current location via a neighboring device at the device;
  Enabling one or more other devices for the wireless communication via one or more of the available channels.
  [70] The method according to [69], wherein the available channels include channels available in a television white space (TVWS).
  [71] The method of [69], wherein the accessing includes accessing the database without association.
  [72] further comprising transmitting a query message to the database of the available channel via the neighboring device, wherein the accessing comprises an enablement for operating as a portable device. The method of [69], comprising accessing the database by obtaining from.
  [73] The method according to [72], wherein the query message is included in a general advertisement service (GAS) frame.
  [74] The method of [72], wherein the query message includes a registered location query protocol (RLQP) query message.
  [75] The RLQP query message includes an information identifier (ID) field indicating that the RLQP query message is for querying the database, a length field indicating the length of the remaining portion of the RLQP query message, [74] The method of [74], comprising at least one of an address of the device, an address of the neighboring device, an enablement ID, or a database ID field identifying the database.
  [76] The method of [74], wherein the RLQP query message includes a security encapsulated database query message.
  [77] further comprising receiving a response message having the available channel;
  The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. The method according to [72], wherein the indication of the available channel includes the security encapsulation database response message, and at least one of an address of the device, or an address of the device. .
  [78] The method of [69], further comprising: querying the neighboring device for access capability to the database.
  [79] In an apparatus for wireless communication,
  Means for accessing a database of available channels for the current location of the device via an adjacent device;
  Means for enabling one or more other devices for the wireless communication via one or more of the available channels.
  [80] The apparatus according to [79], wherein the available channels include channels available in a television white space (TVWS).
  [81] The apparatus of [79], wherein the accessing means is configured to access the database without association.
  [82] Further comprising means for transmitting,
  The means for accessing is configured to access the database by obtaining an enablement for operation as a portable device from the adjacent device, and the means for transmitting is via the adjacent device, The apparatus of [79], configured to send a query message to the database of the available channels.
  [83] The apparatus according to [82], wherein the query message is included in a general advertisement service (GAS) frame.
  [84] The apparatus of [82], wherein the query message includes a registered location query protocol (RLQP) query message.
  [85] The RLQP query message includes an information identifier (ID) field indicating that the RLQP query message is for querying the database, a length field indicating the length of the remaining portion of the RLQP query message, [84] The apparatus of [84], comprising at least one of an address of the apparatus, an address of the adjacent apparatus, an enablement ID, or a database ID field identifying the database.
  [86] The apparatus of [84], wherein the RLQP query message includes a security encapsulated database query message.
  [87] Further comprising means for receiving a response message having the available channel,
  The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. A device according to [82], wherein the indication of the available channel includes the security encapsulation database response message, and at least one of an address of the device, an address of the device, or an address of the neighboring device. .
  [88] The apparatus according to [79], further comprising means for inquiring the adjacent apparatus about an access capability to the database.
  [89] In a computer program product for wireless communication,
  Including a computer readable medium,
  The computer readable medium is
  In a device, instructions executable to access a database of available channels for the current location of the device via a neighboring device;
  A computer program product comprising instructions executable to enable one or more other devices for the wireless communication via one or more of the available channels.
  [90] At the access point:
  The at least one antenna;
  A processing system,
  The processing system includes:
  Accessing a database of available channels for the current location of the access point via a neighboring device;
  An access point configured to enable one or more other devices for the wireless communication via one or more of the available channels.
  [91] In an apparatus for wireless communication,
  A processing system configured to enable a neighboring device as a slave device and to access a database of channels available to the enabled neighboring device;
  And a transmitter configured to transmit the indication of the available channel to the neighboring device.
  [92] The apparatus according to [91], wherein the available channels include channels available in a television white space (TVWS).
  [93] The apparatus of [91], wherein the indication of available channels includes a map of unused frequency spectra.
  [94] The receiver further comprises a receiver configured to receive a query message from the neighboring device to the database of the available channels.
  The apparatus of [91], wherein the transmitter is configured to transmit a response message in response to the query message, the response message including an indication of the available channel.
  [95] The apparatus according to [94], wherein the query message is included in a general advertisement service (GAS) frame or includes a registered location query protocol (RLQP) query message.
  [96] The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and the length of the remaining portion of the response message. As described in [94], wherein the indication of the available channel includes a security encapsulated database response message. Equipment.
  [97] The apparatus of [91], wherein the transmitter is configured to send a beacon or a registered location query protocol (RLQP) message to indicate that the apparatus is database accessible (DBAC). .
  [98] The transmitter is configured to send a registered location query protocol (RLQP) message with a vendor specific information element (IE) indicating a database access parameter or protocol for one or more database vendors. ] The apparatus as described in.
  [99] In a method for wireless communication,
  Enabling an adjacent device as a slave device in the device;
  Accessing a database of available channels for the enabled neighboring devices;
  Transmitting the indication of the available channel to the neighboring device.
  [100]
  The method of [99], wherein the available channels include channels available in a television white space (TVWS).
  [101]
  The method of [99], wherein the indication of available channels includes a map of unused frequency spectra.
  [102]
  Further comprising receiving a query message from the neighboring device to the database of the available channel;
  The method of [99], wherein sending the indication includes sending a response message in response to the query message, the response message comprising an indication of the available channel.
  [103]
  The method of [102], wherein the query message is included in a General Advertisement Service (GAS) frame or comprises a Registered Location Query Protocol (RLQP) query message.
  [104]
  The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. 104. The method of [102], comprising: a security field, at least one of said neighboring device address, or at least one of said device addresses, and wherein said indication of available channels comprises a security encapsulation database response message.
  [105]
  [99] The method of [99], further comprising sending a beacon or a registered location query protocol (RLQP) message to indicate that the device is database accessible (DBAC).
  [106]
  The method of [99], further comprising sending a registered location query protocol (RLQP) message with a vendor specific information element (IE) indicating a database access parameter or protocol for one or more database vendors.
  [107]
  In a device for wireless communication,
  Means for enabling an adjacent device as a slave device;
  Means for accessing a database of available channels for said enabled neighboring devices;
  Means for transmitting the indication of the available channels to the neighboring device.
  [108]
  The apparatus of [107], wherein the available channels include channels available in Television White Space (TVWS).
  [109]
  The apparatus of [107], wherein the indication of available channels includes a map of unused frequency spectra.
  [110]
  Means for receiving a query message to the database of the available channel from the neighboring device;
  The apparatus of [107], wherein the means for transmitting is configured to transmit a response message in response to the query message, the response message including an indication of the available channels.
  [111]
  The apparatus as set forth in [110], wherein the query message is included in a General Advertisement Service (GAS) frame or includes a Registered Location Query Protocol (RLQP) query message.
  [112]
  The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. [110]. The device according to [110], including: a security field, at least one of the address of the neighboring device, or the address of the device, and wherein the indication of the available channel includes a security encapsulation database response message.
  [113]
  The apparatus of [107], wherein the means for transmitting is configured to transmit a beacon or a registered location query protocol (RLQP) message to indicate that the apparatus is database accessible (DBAC).
  [114]
  The means for transmitting is configured to transmit a registered location query protocol (RLQP) message having a vendor specific information element (IE) indicating a database access parameter or protocol for one or more database vendors [107]. The device described.
  [115]
  In a computer program product for wireless communication,
  Including a computer readable medium,
  The computer readable medium is
  Instructions executable on a device to enable a neighboring device as a slave device; and
  Instructions executable to access a database of channels available to said enabled neighboring devices;
  A computer program product comprising instructions executable to send an indication of the available channel to the neighboring device.
  [116]
  At the access point
  At least one antenna;
  A processing system configured to enable a neighboring device as a slave device and to access a database of channels available to the enabled neighboring device;
  An access point comprising: a transmitter configured to transmit an indication of the available channels to the neighboring device via the at least one antenna.

Claims (42)

In a method for wireless communication,
In the device, and that through the next adjacent device, to access the available channels database for the current location of the device,
Here, accessing the database of available channels is
Obtaining an enablement to operate from the neighboring device;
Sending a query message to the database of the available channel via the neighboring device, wherein the query message comprises a security encapsulated database query message;
In the apparatus, method and a that via one or more of the available channels, enabling one or more other devices to the wireless communication. The method of claim 1 , wherein the available channels include channels available in a television white space (TVWS). The method of claim 1 , wherein the accessing comprises accessing the database without association. The method of claim 1 , wherein the query message is included in a General Advertisement Service (GAS) frame. The method of claim 1 , wherein the query message comprises a registered location query protocol (RLQP) query message. The RLQP query message includes an information identifier (ID) field indicating that the RLQP query message is for querying the database, a length field indicating the length of the remaining portion of the RLQP query message, 6. The method of claim 5 , comprising at least one of an address, an address of the neighboring device, an enablement ID, or a database ID field that identifies the database. Further comprising receiving a response message having the available channel;
The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. And at least one of the address of the device or the address of the neighboring device , wherein the response message is a security encapsulated database response message provided by an indication of the available channel the method of claim 1 including. The method of claim 1, further comprising querying the neighboring device for access capabilities to the database. In a device for wireless communication ,
Through the adjacent device, and means for accessing the available channels database for the current location of the device,
Here, means for accessing the database of available channels is:
Obtaining an enablement to operate from the neighboring device;
Configured to send a query message to the database of the available channel via the neighboring device, wherein the query message includes a security encapsulated database query message;
Means for enabling one or more other devices for the wireless communication via one or more of the available channels. The apparatus of claim 9 , wherein the available channels include channels available in a television white space (TVWS). The apparatus of claim 9 , wherein the means for accessing is configured to access the database without association. The apparatus of claim 9 , wherein the query message is included in a General Advertisement Service (GAS) frame. The apparatus of claim 9 , wherein the query message comprises a registered location query protocol (RLQP) query message. The RLQP query message includes an information identifier (ID) field indicating that the RLQP query message is for querying the database, a length field indicating the length of the remaining portion of the RLQP query message, 14. The device of claim 13 , comprising at least one of an address, an address of the neighboring device, an enablement ID, or a database ID field that identifies the database. Means for receiving a response message with the available channel;
The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. And at least one of the address of the device or the address of the neighboring device , wherein the response message is a security encapsulated database response message provided by an indication of the available channel The apparatus of claim 9 comprising: 10. The apparatus of claim 9, further comprising means for querying the neighboring apparatus for access capabilities to the database. In a computer readable storage medium storing a computer program for wireless communication,
The computer program,
In equipment, through the neighboring contact device, and executable instructions to access the database of the current available channels to the location of the device,
Where the instructions for accessing the database of the available channels are:
Instructions for obtaining enablement to operate from the adjacent device;
Instructions for sending a query message to the database of the available channel via the neighboring device, wherein the query message comprises a security encapsulated database query message;
In the apparatus, via one or more of the available channels, computer-readable storage medium and a executable instructions to enable the one or more other devices to the wireless communication. In the access point,
And one antenna even without low,
A transmitter configured to transmit a query message for accessing a database of available channels via the at least one antenna;
A processing system,
The processing system includes :
Through the next adjacent device, it accesses the database of the available channels for the current location of the access point,
Wherein the processing system obtains an enablement to operate from the neighboring device and sends the query message to the database of the available channel via the neighboring device. And configured to access the database of the available channel, wherein the query message comprises a security encapsulated database query message;
One or more through the access point that is configured to enable the one or more other devices with respect to the sum Iyaresu communication among the available channels. In a device for wireless communication,
A processing system configured to enable a neighboring device as a slave device and to access a database of channels available to the enabled neighboring device;
A transmitter configured to transmit an indication of the available channel to the adjacent device;
A receiver configured to receive a query message from the adjacent device to the database of the available channels;
The transmitter is configured to transmit a response message in response to the query message, the response message including an indication of the available channels. The apparatus of claim 19 , wherein the available channels include channels available in a television white space (TVWS). The apparatus of claim 19 , wherein the indication of available channels includes a map of unused frequency spectra. 21. The apparatus of claim 19 , wherein the query message is included in a General Advertisement Service (GAS) frame or includes a Registered Location Query Protocol (RLQP) query message. The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. 20. The device of claim 19 , wherein the device includes a security field, an address of the neighboring device, or at least one of the device addresses, and the indication of the available channel includes a security encapsulation database response message. The apparatus of claim 19 , wherein the transmitter is configured to send a beacon or a registered location query protocol (RLQP) message to indicate that the apparatus is database accessible (DBAC). The transmitter according to claim 19 that is configured to send a registration location query protocol (RLQP) messages with vendor specific information element (IE) indicating the database access parameters or protocol for one or more database vendor Equipment. In a method for wireless communication,
Enabling an adjacent device as a slave device in the device;
Accessing a database of channels available to the slave device at the device ;
Here, accessing the database of available channels is
Receiving a query message from the neighboring device to the database of the available channel, wherein the query message comprises a security encapsulated database query message;
Sending an indication of the available channel to the neighboring device ;
Including methods. 27. The method of claim 26 , wherein the available channels include channels available in a television white space (TVWS). 27. The method of claim 26 , wherein the indication of available channels includes a map of unused frequency spectra. 27. The method of claim 26, wherein sending the indication includes sending a response message in response to the query message, wherein the response message includes an indication of the available channel. 27. The method of claim 26 , wherein the query message is included in a general advertisement service (GAS) frame or comprises a registered location query protocol (RLQP) query message. The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. And at least one of the address of the neighboring device or the address of the device , wherein the response message is a security encapsulated database response message provided by an indication of the available channel 30. The method of claim 29 , comprising: 27. The method of claim 26 , further comprising sending a beacon or a registered location query protocol (RLQP) message to indicate that the device is database accessible (DBAC). 27. The method of claim 26 , further comprising sending a registered location query protocol (RLQP) message with a vendor specific information element (IE) indicating a database access parameter or protocol for one or more database vendors. In a device for wireless communication,
Means for enabling an adjacent device as a slave device;
Means for accessing a database of available channels for said enabled neighboring devices;
Means for transmitting an indication of the available channel to the neighboring device;
Means for receiving a query message from the neighboring device to the database of the available channel;
The means for transmitting is configured to transmit a response message in response to the query message, the response message including an indication of the available channels. 35. The apparatus of claim 34 , wherein the available channels include channels available in a television white space (TVWS). 35. The apparatus of claim 34 , wherein the indication of available channels includes a map of unused frequency spectra. 35. The apparatus of claim 34 , wherein the query message is included in a General Advertisement Service (GAS) frame or includes a registered location query protocol (RLQP) query message. The response message includes an indication of the available channels, an information identifier (ID) field indicating that the response message is in response to the query message, and a length indicating the length of the remaining portion of the response message. 35. The device of claim 34 , wherein the device includes a security field, an address of the neighboring device, or at least one of the device addresses, and the indication of the available channel includes a security encapsulation database response message. 35. The apparatus of claim 34 , wherein the means for transmitting is configured to transmit a beacon or a registered location query protocol (RLQP) message to indicate that the apparatus is database accessible (DBAC). It said means for transmitting are to claim 34 that is configured to send a registration location query protocol (RLQP) messages with vendor specific information element (IE) indicating the database access parameters or protocol for one or more database vendor The device described. In a computer readable storage medium storing a computer program for wireless communication,
The computer program is
Instructions executable on a device to enable a neighboring device as a slave device; and
Instructions executable on the device to access a database of channels available to the slave device ;
Where the instructions for accessing the database of available channels are:
Instructions for receiving a query message to the database of the available channel from the neighboring device, wherein the query message comprises a security encapsulated database query message;
In the device, instructions executable to send an indication of the available channel to the neighboring device ;
A computer readable storage medium comprising: At the access point
At least one antenna;
A processing system configured to enable a neighboring device as a slave device and to access a database of channels available to the enabled neighboring device;
A transmitter configured to transmit an indication of the available channels to the adjacent device via the at least one antenna;
A receiver configured to receive a query message from the adjacent device to the database of the available channels;
The transmitting includes transmitting a response message in response to the query message, the response message including an indication of the available channel.

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